I work for a Coca-Cola bottler and they found a few pallets of 20 year old glass Coke bottles from Christmas and our 100 year anniversary. We were talking about we wouldn't drink them because they might make us sick and then a guy told us that his grandchildren had got up early a few days ago and drank a bunch of them and they were fine.
The funny part is when my friend said that she would only drink them if there was a nuclear fallout and it was the only thing to drink. Made me laugh that she would say that. They are still sealed and have carbonation, she said they are still good if the seal isn't broken but I can't bring myself to drink one. Though I would share it with you fine wastelanders.